Don't mess with our tiramisu

Margherita pizza from Naples, mozzarella and parma ham... All of them are well-known Italian products. All of them have also been given protected status to make sure they stay true to their original recipe. Now, Italian politicians want tiramisu to join that club. They've watched in horror as some have added strawberries and cream to the dessert. We head to Treviso where the tiramisu is said to have been created in the 70s.